% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 77 12 -17 64 10 23 67 74 61 46 72 104 123 190 348 368 456 419 463 372 219 442 242 209 204 131 109 132 209 142 166 86 57 108 95 68 59 -16 67 17 -27 25 25 40 51 -7 52 36 30 -21 55 55 46 34 50 14 67 100 61 60 61 78 66 113 72 69 54 36 69 -28 58 53 47 45 30 72 73 48 35 20 50 41 -15 -32 38 -29 -36 -36 -43 13 32 56 -28 -9 -38 56 25 -10 27 39 -21 13 11 -28 -5 21 -22 -30 -19 8 -20 38 18 -28 -22 31 -24 31 17 35 -29 -31 -26 -24 -26 -30 29 16